Only recently have scientists begun to realize the dangers c

Only recently _____to realize the dangers caffeine might bri only today have i begun to understand. we have only just begun smokers will realize the dangers of smoking one day. It's only since I have been blind that I have begun to see t 1 These scientists have made great c------ to sending up the Only recently----to deal with the environmental problems. You _______ be tired; you have only just begun to work Scientists have many theories about how the universe first c The scientists believe ( )they have devoten themselves to ( With the population explosion,scientists will have to ____ n With the population explosion, scientists will have to _____